OpenTechnical

OT-2026-000056764

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, sustained blow-off after set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000056764) never changes.

Identity and time

Publication numberOT-2026-000056764 · never reused
Internal UUID01a0ae87-7af7-7e52-9091-5fb75a909b45 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:49.577818Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056764
StatusPUBLIC

Content hashes

Canonical text0196e082e3135ee6d30f914b6c6518e30665582ebf0d6532ce9ec677b7dbf2a6
Markdown7a46a2256b825cb6ce60f0329d8b45a215dc9d4b0d0d0b0f576ed39bd410c7ad
PDF
Publication page0b9bc842bc70b438240cc4f20773dd5ca834e65ec45a9bdd829548124460cd33
Manifestec61e6ebb86ed83f08b49255c1b7698d6070a96008f333e2b319611b6b0440f8

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureDWjENkGNU0n19Xaz8Z917ne7CpJ1G81j8kJCp29mPyNOS8HbKAScoXlhUg/1zARbzCy0kScXHzIBbkWCF6lmDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:12.610848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056764
observed 0b9bc842bc70b438240cc4f20773dd5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:12.594457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056764/manifest.json
observed ec61e6ebb86ed83f08b49255c1b7698d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:12.577127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056764/publication.md
observed 7a46a2256b825cb6ce60f0329d8b45a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:12.559243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056764/publication.txt
observed 0196e082e3135ee6d30f914b6c6518e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.